An LSI Random Number Generator (RNG). - Robert C. Fairfield; Robert L. Mortenson; K. B. Coulthart (CRYPTO, 1984)

An LSI digital encryption processor (DEP). - Robert C. Fairfield; Alex Matusevich; Joseph Plany (IEEE Commun. Mag., 1985)

The speech transcoding frame 2000 for GSM cellular systems. - Victoria G. Riggs; Robert C. Fairfield; Juan Segura (Bell Labs Tech. J., 1996)